Stadium: Ochsenhausen, Germany
| Challenger Series TT | 2023/06/08 18:30 | Jeromy Loffler v Kirill Fadeev | W | 1-3 |
| Challenger Series TT | 2023/06/08 15:50 | Akito Itagaki v Kirill Fadeev | W | 2-3 |
| Challenger Series TT | 2023/06/08 13:50 | Antonin Gavlas v Kirill Fadeev | L | 3-0 |
| Challenger Series TT | 2023/06/08 09:50 | Tobias Slanina v Kirill Fadeev | W | 1-3 |
| Challenger Series TT | 2023/06/08 07:10 | Florian Bluhm v Kirill Fadeev | W | 2-3 |
| Challenger Series TT | 2023/06/06 10:30 | Kirill Fadeev v Jin Ueda | L | 1-3 |
| Challenger Series TT | 2023/06/06 07:50 | Kirill Fadeev v Antonin Gavlas | L | 0-3 |
| Challenger Series TT | 2023/06/05 19:10 | Kirill Fadeev v Simon Berglund | L | 1-3 |
| Challenger Series TT | 2023/06/09 07:10 | Antonin Gavlas v Marco Stefanidis | L | 3-0 |
| Challenger Series TT | 2023/06/08 17:10 | Tobias Slanina v Marco Stefanidis | L | 3-1 |
| Challenger Series TT | 2023/06/08 15:10 | Jeromy Loffler v Marco Stefanidis | L | 3-1 |
| Challenger Series TT | 2023/06/08 12:30 | Florian Bluhm v Marco Stefanidis | L | 3-2 |
| Challenger Series TT | 2023/06/08 11:10 | Akito Itagaki v Marco Stefanidis | W | 1-3 |
| Challenger Series TT | 2023/06/08 06:30 | Max Klink v Marco Stefanidis | W | 1-3 |
| Challenger Series TT | 2023/03/03 10:50 | Liang Qiu v Marco Stefanidis | L | 3-0 |
| Challenger Series TT | 2023/03/03 09:30 | Marco Stefanidis v Damian Zech | L | 1-3 |